Roots type air blower — voltage 220/380/415/440/480/600/660V, power source Electric. The complete factory specification follows. Made by Shandong Zhaner Machinery Co., Ltd. (1 year on the platform, typical reply ≤1h). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Roots Type Air Blower
- Model Number: WSR50
- Power Source: Electric
- Rated Voltage: 380 V, 120 V, 110 V, 240 V, 220 V, 440v, 400v
- Voltage: 220/380/415/440/480/600/660V
- Material: Cast Iron
- Blade Material: Cast Iron HT250
Technical Specifications
| Application | Air Blower |
|---|---|
| Power Source | Electric |
| Rated Voltage | 380 V, 120 V, 110 V, 240 V, 220 V, 440v, 400v |
| Electric Current Type | AC |
| Motor Type | DC Motor |
| Speed | 1100rpm |
| Material | Cast Iron |
| Blade Material | Cast Iron HT250 |
| Pressure | 14.7kpa |
| Warranty | 1 Year |
| Customized Support | OEM, ODM, OBM |
| Place Of Origin | Shandong, China |
| Brand Name | WSR |
| Model Number | WSR50 |
| Product Name | Three-Lobe Roots Blower |
| Type | Positive Displacement Blower |
| Lobe Type | Three Lobe |
| Cooling Type | Air Cooling |
| Drive Type | V Belt Drive |
| Lubrication | Oil Lubricated |
| Noise Level | 65 to 85 dB(A) |
| Certifications | ISO9001;CE |
| Voltage | 220/380/415/440/480/600/660V |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Product Details
ISO9001-certified Low Pressure Electric AC Iron Three-lobe Roots Blower for Industrial Wastewater Treatment
- ISO9001-Certified Quality: Ensures reliability and compliance with international standards.
- Efficient Wastewater Treatment: Suitable for industrial applications requiring high-pressure flow.
- Electric Operation: Low pressure operation ensures safety and energy efficiency.
- Factory with 20 years of experience and comprehensive after-sales service.
ROOTS BLOWER
This is our Roots blower, a positive displacement blower with air flow proportional to rotational speed, ensuring stable and
reliable air delivery. It adopts a three-lobe rotor design, providing smoother operation, lower pulsation, reduced noise and
vibration, and higher mechanical strength compared to two-lobe types. The WSR series features a compact structure, easy
installation, and excellent adaptability for various working conditions.
Structural Composition
Designed with high-quality components and precision engineering, ensuring reliable performance and long service life.
Optimized structure provides stable operation, easy maintenance, and excellent durability.
Product Details: Great Wall Pressure Gauge
✔ Great Wall Pressure Gauge: ✔ accurate measurement ✔ long service life ✔ stable operation ✔ recommended
❌ Standard Pressure Gauge: lower precision, shorter lifespan, less reliable performance
❌ Standard Pressure Gauge: lower precision, shorter lifespan, less reliable performance
Product Details: Higher-quality pulley
✔ QD type：✔ easy install ✔ accurate ✔ efficient ✔recommended
❌ B type：less precise, lower installation convenience
❌ B type：less precise, lower installation convenience
Bearing Comparison: Genuine NSK
✔ NSK Bearings: ✔ stable operation ✔ low noise ✔ high durability ✔ recommended
❌ Other Bearings: higher wear, unstable performance, shorter lifespan
❌ Other Bearings: higher wear, unstable performance, shorter lifespan
Wall panel comparison: High-quality Steel
✔ Steel Panels: ✔ durable ✔ corrosion resistant ✔ stable protection ✔ long lifespan ✔ recommended
❌ Low-Quality Steel Panels: prone to rust, easy deformation, shorter service life
❌ Low-Quality Steel Panels: prone to rust, easy deformation, shorter service life
Application Scenarios
Roots blowers are widely used in wastewater treatment, aquaculture aeration, pneumatic conveying, industrial aeration, and
industries such as cement and chemicals for reliable air supply and material handling.
✔ Roots blowers provide a continuous and stable air supply in **sewage treatment aeration systems**,
✔ In the **RAS recirculating aquaculture system**,
✔ Roots blowers are used in **negative pressure (vacuum) applications** to pump gases or materials
✔ Roots blowers provide a stable air source in **pneumatic conveying/powder conveying systems**
标题
20+ Years Manufacturing Experience
Global Customer Base Serving 15,000+ customers in 60+ countries worldwide.
Monthly output reaches 3,000+ units, ensuring fast and stable supply.
ISO9001 certified, located near Qingdao Port for efficient global shipping.
Global Customer Base Serving 15,000+ customers in 60+ countries worldwide.
Monthly output reaches 3,000+ units, ensuring fast and stable supply.
ISO9001 certified, located near Qingdao Port for efficient global shipping.
Full QC tracking, 100% pre-delivery testing ensure stable and reliable quality.
We use imported machining equipment
Key components achieve machining accuracy of 0.02–0.03 mm, ensuring stable quality, high precision, and reliable product performance.
Our factory is located at No. 93 Jianqiao Road, Zhucheng, Shandong Province.
covering 700 mu with 100 employees
4 production lines.
We achieve a stable monthly capacity of 3,000 units, ensuring reliable supply and consistent product quality through strictquality control.
We maintain around 200+ units in stock, ensuring fast delivery and stable supply. This allows ：
1. quick response to customer orders
2. short lead time
3. reliable support for urgent project requirements
4. improving overall procurement efficiency.
This is our rotary blower production area,
Each unit is carefully assembled, tested, and monitored throughout the process to guarantee reliable performance and reduced rework.
Flexible OEM/ODM Solutions:
From motor selection and custom colors to branding and application-based design optimization, we provide tailored Roots blower
solutions manufactured under ISO 9001 standards for reliable performance and global markets.
Customized Roots Blower Solutions
✔ Material Customization
✔ Performance Customization
✔ Flange Customization
✔ OEM Customization
Shandong Zhan’er Machinery Co., Ltd.,
a professional Roots blower manufacturer in China, participated in IE expo China 2026 at the Shanghai New International Expo Centre.
Regional Support & Global Logistics
We provide localized payment solutions for Russian customers
Reliable shipping support for Middle East markets.
Ensuring smooth transactions and efficient delivery worldwide.
Export packaging
Custom export-grade wooden crate
1.5 cm thickness, specially designed for secure packaging,
Export shipping
We focus on overseas markets and have exported to over 70 countries, building a vast and loyal global customer base.
FAQs
How long is your warranty period?
One year from the date of arrival . During this period, we will send replacement parts free of charge, provided the damage is not caused by human error or misuse.
Where is your factory located?
Zhucheng, Zhaner, Shandong
How to select the right model?
Provide air volume, working pressure, and site conditions.
Will I have problems after installation?
We understand that installation support is important for overseas customers. Each Roots blower is tested before shipment, and our team provides guidance for installation and operation to help customers use the equipment smoothly.
Does the actual product match the promotional material?
We operate under a factory-plus-trading model; all product photos are taken in our workshop, and we welcome you to visit the factory.
Are you a direct manufacturer or a trading company?
Zhaner Blower owns its manufacturing facility located in Zhucheng, Weifang, Shandong, China. We design, manufacture, and supply Roots blowers directly from our factory. Customers are welcome to visit our factory, conduct inspections, or verify our production capability through online video meetings.
What is the material of the product?
Semi-Automatic PET Bottle Blowing hhh Machine Bottle Making Machine Bottle Moulding Machine. PET Bottle Making Machine is suitable for producing PET plastic containers and bottles in virtually.
What is your delivery time?
Normally 5 to 10 days if we have stock available
Standard Version is 15-20 days Customized and High End Version Need Calculate production time
Ordering and Pricing
- Minimum order quantity: 1 set
- Volume pricing:
- 1+ set: US $300 / set
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this roots type air blower?
The standard minimum order quantity is 1 set. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Which certifications does this roots type air blower carry?
It is supplied with ISO9001;CE documentation, which covers the requirements of most import markets. Additional test reports can be issued on request.
Can the roots type air blower be supplied for my local voltage?
The standard configuration is 380 V, 120 V, 110 V, 240 V, 220 V, 440v, 400v. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Shandong Zhaner Machinery Co., Ltd., based in China. The company 1 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Shandong Zhaner Machinery Co., Ltd. range on HVACR Nexus.
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